33240239 has 2 divisors, whose sum is σ = 33240240. Its totient is φ = 33240238.

The previous prime is 33240227. The next prime is 33240257. The reversal of 33240239 is 93204233.

It is a weak prime.

It is an emirp because it is prime and its reverse (93204233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33240239 - 2⁴ = 33240223 is a prime.

It is a super-2 number, since 2×33240239² = 2209826977554242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33240269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16620119 + 16620120.

It is an arithmetic number, because the mean of its divisors is an integer number (16620120).

Almost surely, 2^33240239 is an apocalyptic number.

33240239 is a deficient number, since it is larger than the sum of its proper divisors (1).

33240239 is an equidigital number, since it uses as much as digits as its factorization.

33240239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 33240239 is about 5765.4348491679. The cubic root of 33240239 is about 321.5299102174.

The spelling of 33240239 in words is "thirty-three million, two hundred forty thousand, two hundred thirty-nine".